Internal Medicine Providers

Our highly experienced team of providers is focused on keeping you at your healthiest best

Ching Wang, MD, FACP

Location: Internal Medicine, North Yuma
Specialty: Internal Medicine
Med School: University Federal de Rio de Janeiro, Rio de Janeiro, Brazil, graduated December 1989
Residency: New York Methodist Hospital in Brooklyn, NY, completed training June 1995
Certification: Board certified with the American Board of Internal Medicine, 1996, re-certified in 2016
 

Mazhar Bajwa, FNP-BC

Location: Yuma Internal Medicine Clinic
Specialty: Family Nurse Practitioner
School: Mountain State University, Beckley, WV, graduated December 2012.
Certification: Board certified with the American Nurses Credentialing Center, 2015
Joined Sunset September 2018

Delia Montopoli, CNM, MSN, OGNP-C

Location: Yuma Internal Medicine Clinic
Specialty: Certified Nurse Midwife / Health Nurse Practitioner
School: University of Chile School of Medicine, Santiago, Chile, completed training 1976 University of Wyoming School of Nursing, Laramie, WY, completed Master degree 1995
Certification: Board certified with American Midwifery Certification Board, 1995 Board certified with the National Certification Corporation for the Obstetric, Gynecologic and Neonatal Nursing Specialties. Master Degree in Nursing Education, 1993
Joined Sunset March 1996
 

Efoui Abotsi-Kowu, MSN, AGPCNP

Location: Yuma Internal Medicine Clinic
Specialty: Adult Gerontology Nurse Practitioner
School: South University, Savannah, GA, graduated June 2018
Certification: Board certified with the American Academy of Nurse Practitioners, 2018
Joined Sunset October 2019

April Rojas, FNP-C

Location: Yuma Internal Medicine Clinic
Specialty: Family Nurse Practitioner
School: Northern Arizona University, Flagstaff, AZ, graduated May 2020
Certification: Board certified with the American Academy of Nurse Practitioners, 2020
Joined Sunset July 2020

Julia L. Luevanos, FNP-C

Location: North Yuma Internal Medicine Clinic
Specialty: Family Nurse Practitioner
School: Chamberlain University, Downers Grove, IL, graduated February 2018
Certification: Board certified with the American Nurses Credentialing Center, 2019
Joined Sunset January 2021

Maria Fereira-Carroz, MD

Location: Somerton Internal Medicine Clinic
Specialty: Internal Medicine
Med School: University of  Zulia, Maracaibo, Venezuela, graduated December 2003
Residency: Morehouse School of Medicine, Atlanta, GA, completed training June 2014
Certification: Board certified with the American Board of Internal Medicine, 2014
Joined Sunset November 2014

Oliver Severino, MD

Location: San Luis Internal Medicine Clinic
Specialty: Internal Medicine
Med School: University of the Philippines, Manila, Philippines, graduated May 2000
Residency: The Jewish Hospital of Cincinnati, Cincinnati, OH, completed training June 2005
Certification: Board certified with the American Board of Internal Medicine, 2005, re-certified 2015
Joined Sunset August 2005

Angeles Olivarez, PA-C

Location: San Luis Clinic
Specialty: Physician Assistant
School: A.T. Still University, Mesa, AZ, graduated September 2022.
Certification: Board certified with the National Commission on Certification of Physician Assistants, 2022.
Joined Sunset December 2022

Bryson Wandling, PA-C

Location: San Luis Internal Medicine Clinic
Specialty: Physician Assistant
Med School: Harding University, Searcy, AR, graduated December 2018
Certification: Board certified with the National Commission on Certification of Physician Assistants, 2019
Joined Sunset May 2020

Lori Burris, FNP-C

Location: Wellton Internal Medicine Clinic
Specialty: Family Nurse Practitioner
School: Chamberlain University, Downers Grove, IL, graduated October 2018.
Certification: Board certified with the American Academy of Nurse Practitioners, 2018
Joined Sunset July 2019